Maximize $p = 7 x + 9 y$ Subject to the Following (Using the Simplex Method)

Multiple Choice

Maximize $p = 7 x + 9 y$ subject to the following (using the simplex method) .
$$\begin{aligned}9 x + 8 y & \leq 144 \\x + y & \geq 8 \\8 x + 9 y & \leq 144 \\x \geq 0 , y & \geq 0\end{aligned}$$

A) $p = 112$ , $x = 16$ , $y = 0$
B) $p = 144$ , $x = 0$ , $y = 16$
C) $p = 56$ , $x = 8$ , $y = 0$
D) $p = 72$ , $x = 0$ , $y = 8$
E) no solution